Churn



Dec. 18, 1928.

G. E. WHEELER CHURN Filed July 30, 1926 3 Sheets-Sh ew l amvemtoz,

Dec. 18, 1928. 1,695,404

cs. E. WHEELER CHURN Filed y 3 1926 5 Sheets-Sheet Z JIIIIIIIIIIIIII I 41 1: max

anvamtoz Dec. 18, 1928. 1,695,404

G. E. WHEELER CHURN Filed J ly so. 1926 3 Sheets-Sheet. 3

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Patented Dec. 18, 1928.

UNITED" STATES GE-oRGEm.'wnnnnnmormunmneron, IOWA, nssIGNoR- TO THE nunmive'ron SEPAP m'ron 00., or BURLINGTON, IOWA.

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Application filed July 30,

This invention relates toa churn, one of the objects being to provide a device of this type having a dasher designed to revolve at a high speed, the action beingsuch that a continuous How of fresh air will be set up downwardly into the fluid contained within the device and thence outwardly in thin sheets so as to quickly break up the fatty globules and reduce the liquid contents of the container to butter in the shortest possible time.

A further object isjto combine'with the rotary dasher anovel form'o'f breaker or baffle whereby agitation of the liquid contents of the container isgreatly increased during the rotation of the d-ashern A further object is to provide a dasherutilizing a tubular stem which serves the purpose of an air flue I or conductor whereby, through the centrifugal action of the rotating dasher, a current of air'downwardlyl into the fluid will be set up-andthe air delivered outwardly into the fluid from the margin of'th'e dasher head.

A further object is to provide a dasher headlthe parts. of which can be separated readily for thepurposeof cleaning or replacing them.

Another object is tofprovide simple' and' details of construction hereinafter described andclaimed, itbeing understood that changes from the-spirit 'of the inventiona;

. In the accompanying drawings the preferred :form of the invention has been shown.

In said drawings, g Figure 1 isa section through a churn em- :nbodying the-present improvements.

Figure 2 is a top "plan view thereof.

through the dasher. p o r F'gure 4: is a bottomplan view of the 'dasher. j r V Figure 5 isa plan view of the upper end of the dasher Figure '6 is 'asection on line; 62-6, F ig-. ureB. 1

. Figure 7 is 'anenlargedsection through a 1926. Serial 1 T 125,988.

vided with anupstanding annular flange 2,

thereby providing a circular seat. A portion of the flange 2 can be cut away to provide an outlet 3 for fluid accumulating in theseat and extending from the base at diametricallyfl opposed points are ears in which are seated the lower ends of upstanding rods or posts 5. A frame 6' is extended outwardly from the base at a point preferably midway between the ears 4 and anchored in this frame are the lower ends'of upwardly ex tending rods or posts 7 the upper ends of which are secured within an arm 8 entending downwardly from one'end of a tubular casting'9 This casting is provided atone end with a housing 10 having a cover plate- 11 for closing one side thereof, said plate being formed integral with a cross head 12 fi Xedly secured to the'upper ends ofythe rods or posts 5. p g 5 A hearing member13is seated'in the upper portion of the cross head 12 and an angular shaft'llis mountedt'o slide and rotate therein, this shaft being provided at its upper end with a knob 15 or the like whereby it can be shifted longitudinally. Thejlower end o'fthe shaft is mounted to slidean'd'rotate within afbearing member 16 in the'lower portion of the cross head and extending from the lower endof the'shaft is a coupling head '17 Shaft 14 is slidably mounted within a gear 18 withinthe housing and thisigearis' designed to rotate with the shaft. Aspring 19 is mountedvon the shaft and bears at its upper end against the bearing member 13' while its lower end is designed to thrust against shaft 14 so as to hold said shaft normally pro the knob 15 the shaft 14 can be elevated against the action of spring 19 so as to retract the coupling member 17 into the lower Figure 3 is an enlarged vertical section portion of thehousing.

Bearing members 20 arearranged within the end portions of the tubular casting and .journaled within these members is a shaft 21 one'c-nd of whichhas a gear 22 located in the housing 10 and constantly meshing with .thegear 18. A smallp-inion 23 is provided at characters of jected downwardly. By pulling upwardly on stud extending from the arm 8. This gear has a radial arm 26 provided with a handle 27 whereby the gear can be rotated by hand and mot-ion thus transmitted through of a cylindrical container 28 which can be formed of glass, earthenware or any other suitable material. This container is provided, at the center of its bottom, with a boss 29 formed with a recess 30. A drain openng 31 can be formed 1n the wall. of the cont ainer. this opening being normally closed by any suitable means such as a plug 32 or the like. 7 i

Arranged upon the inner surface of the 7 wall of the container at desired intervals are breakers or baffles each of which consists of a strip 33 preferably of wood and provided with transverse openings 34. The lower ends of these strips. bear upon the bottom of the container 28 while the upper ends are formed with tongues 35 to which are secured metal clips 36. These clips are adapted to embrace and grip upon the upperedge portion of the container 28 so as thus to hold the breakers or baffles firmly positioned within the container. g The principal feature of the present invention is the dasher. This dasher includes a tubular stem 37 open at its ends and provided, at its lower end, with a circular disk 38. This disk is provided with segmental depressions 3 9 and recesses 40 are formed in the bottoms of the depressions by striking portions of themetal upwardly. This is clearly indicated in. Figure 7.

"The upper end of the tube 37 is extended between short fingers 41 projecting from wings 42 which are integral with a. cap 43 having a central outstanding boss 44. These wings 42 are spaced apart and their ends constitute shoulders 45 against which the upper end of the tube 37 abuts. Cap 43 and boss 44 constitute a nut for engaging the threaded upper end portion of a rod 46 the lower end portion of which is extended through the center of the bottom disk 47 of the dasher head. This bottom disk has nodes 48 struck up wardly therefrom and adapted to be seated within the recesses 40. Radial angular channels 49 are pressed, downwardly into the disk and are so located that when the nodes 48 are seated in the recesses 40 these channels will be disposed under the disk 38 at points between the segmental depressions 39. Disk 47 has a nut 50 integral with the center portion-thereof and to which the rod 46 is secured, the lower end of this rod being rounded as at 51 so as toconstitute a bearing for engagement with the wall of recess 30.

The upper end of boss 44 has a diametrical groove 52 and this groove is designed to receive the coupling member 17.

In practice the dasher is inserted into the container 28 and the lower end 51 of rod 46 is placed in the recess 30. The shaft 14 is then lifted. so as to permit the insertion of the cap 43 and boss 44 under the coupling member 17 after which said shaft 14 is released and spring 19 will seat the coupling member 17 within the groove 52. Thus the dasher will be coupled to its drive mechanism. The cream or other liquid to be treated is placed in the container and gear 26 is then rotated. This will cause rotation of the dasher at a high speed. and the centrifugal force set up through the dasher head will cause fresh air to flow downwardly between the wings 42 into the tubular stem 37 and thence outwardly in thin spaced sheets through the spaces pro vided between the disks 38 and 47 directly above the radialgrooves 49. Airthus delivered in thin sheets will be forced outwardly into the fluid each relatively narrow sheet of air sweeping outwardly under the sheet of air immediately preceding it andas these successive' sheets of air act upon thefluidthey will quickly aerate it, break up the fatty globules,

produce swirling action of the fluid. and the fluid, in turn, by sweeping against and past the breakers or baflies 33, will be further disintegrated. Consequently the production of butter will be greatly accelerated. It might be stated that by providing the grooves or depressions 49, the transverse area of each sheet of air delivered from the dasher head will have a transverse configuration approximating that of the space between the dashers. In other words portions of the sheet of air will be thicker than other portions. While this in only momentary ithas been found that it produces a much greater agitation of the liquid than would be possible should the sheet of air be of uniform thickness. Furthermore the walls of the depressions impartgreater momentum toeach sheet of air than would be possible should these depressions not be utilized. Consequently each sheet of air will be thrown farther into the fluid than I would be the case should'the bottom disk be formed with a flat surface. It is to be under stood of course that various'changes may be made in theproportions and shapes of some of the parts of this device and that while the mechanism disclosed for driving the dasher is the preferred construbtion, other types of mechanism may be employed.

- The breakers can be removed readily from the container for the purpose of cleaning them and by lifting the shaft 14, the coupling member 17 can become disengaged from the boss 44 so that the entire dasher can thus be removed readily from the container. By unscrewing the rod 46 from the boss 44 and cap 43 the wings 42 can be removed from engagelit) ment with the tubular stem 37 and rod 46 with its disk 47 can be separated from the disk &8 and the stem 37. Thus the several parts can be easily cleaned and repaired.

What is claimed is: e c a 1. In a churn a dasher including a tubular stem, a member having spaced wings engaging one end of the stem and providing air inlets between them, a disk at the other end of the stem having depressions, a bottom disk bearing against the depressions to provide air outlets thercbetween, cooperating interfitting means upon the disks for holding them against relative rotation, and an adjustable connection between the bottom disk and the stem engaging member for binding the disks together.

2. In a churn a dasher including a tubular stem, a disk at one end of the stem having annularly spaced segmental depressions, said stem opening through the disk, a bottom disk resting fiat against the depressions, those portions of the bottom disk between the depressions of the first named disk being formed with radial depressions, cooperating interfitting means in the contacting portions of the disk for holding said disks against relativerotation, a rod fixedly'secured to the bottom disk and extending longitudinally through the stem, a cap constituting a nut 3. In a churn a dasher including a tubular stem, a rod extending therethro-ugh, a disk carried by one end of the stem having annularly spaced segmental depressions, a disk fixedly connected to the rod and normally fitted against said depressions, those portions of the disks between the depressions cooperating to provide outlets for air, cooperating means in the depressions and the adjacent disks for holding the two disks againstrelative rotation while in contact, a cap engaging the other end of the rod and constituting a nut, radial wings extending from the cap toward the stem, said wings having free end port-ions lapping the stem to center it about the rod, there being shoulders on the wings for thrusting against the stem, thereby to bin d the disks together and hold them asse1nbled with the stein and rod, the said parts being separable when the cap is loosened.

' In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

GEORGE E. WHEELER. 

